Lock-nut.



. T. A. HOCKEY.

LOCK NUT. APPLICATION FILED AUG. 21, 1912.

Patented May 13, 1913.

lento THOMAS A. HOCKEY, OF MGDONALD, PENNSYLVANIA.

LUCK-NUT.

To all whom it may concern:

Be it known that I, THOMAS a citizen of the United States, residing at.

McDonald, in the county of lVashington' and State of h ennsylvania, have invented new and useful Improvements in Lock-Nuts,

of which the following is a specification.

The present invention relates to improve ments in nut locks.

In carrying out my invention it is my purpose to provide a nut comprising two sections, one of which having a sleeve,-while the second section is arranged upon the sleeve and is adapted to act upon a key to slide the same within the bore of the first named section to. cause the key to contact with the bolt to lock the nut upon the bolt, when the said second section is rotated in one direction, and to cause the key to release the bolt when the section is rotated in an opposite direction.

With the above, and other objects in View which will appear as the nature of the invention is more fully understood, the inven' tion resides in the construction, combination and arrangement of parts set forth in the following description, and falling within the scope of the appended claims.

In the drawings, Figure 1 is a perspective view at the sections of the nut disassembled. Fig. 2 is a central longitudinal sectional view taken through the nut-and arranged upon a bolt. Fig. 3 is a perspective view of the key. Fig. 1 is a detail view more fully illustrating the arrangement of the flange 6 of the nut section B.

Similar reference characters are employed to designate corresponding parts throughout the several views. I

Referring now to the drawing in detail, A designates the main section of the nut, and B the auxiliary or looking section thereof. The section A is provided with a centrally arranged projecting sleeve 1, the same having its bore threaded as designated by the numeral 2, the threads of the bore forming extensions of the threads of the nut section A. The outer iface of the sleeve 1 is also threaded as designated by the numeral 3,

jacent the juncture of the said sleevewit the nut are provided with a substantially rectangular recess a.

The section 3 has its bore threaded as at 5, the'said threads adapted to ce act with the threads of th sleeve 2,- and the inner Specification eQLettersfiatent.

A; HOCKEY,

Patented May 13, 1913.

' Application med August 21, 1912. Serial No. 716,342.

face of the said section B is provided with an eccentrically arranged flange 6, The flange 6 is not continuous, but is broken at the portion of the flange nearest the perimeter-Z of the locking section B, as indicated by the numeral 7. The space between the ends of the flange equals or is slightly greater than the distance between the long'i tudinalwalls provided by the recess 4 of the nut sect-ion A.

The numeral 8 designates the locking key for the device. lhe locking key comprises a substantially rectangular member which is adapted-t0 be snugly received within the recess a and which has one of its edges formed with teeth 9, the said teeth beingadapted to tightly compress against the thread of the bolt G in a manner which will presently be set forth. The key 8 has one of its transverse edges formed with an opening or-r depression, 10, the samebeing of a width sufficient to snugly receive the eccentrically arranged flange 6 of thenut section B.

By an arrangement as above described, it

'it-hin the recess 4, and screwing the sec tion B upon the threads 3 of the sleeve 1 in .80 will be noted that by arranging the key 8" order to permit of' the, depression'lO of the said key being engaged by the flange 6, the revolving of the section B in one direction will efiectively force the teeth 9 of the key' tightly into engagement with the threads of i i the bolt C, while a movement in a reverse direction will withdraw the teeth of the key 8 from engagement with the threads of the bolt. Furthermore, it will be noted that by forming the flange 6 with a cut-away por: tion or passage between the ends thereof, the key '8 may be readily withdrawn when the said passage is brought into registerwith the recess 4. It will be also noted that the section B will force ,the key longitudinally within the recess 4, and the said act-ion not only forces its teeth 9 against the threads of the bolt 0, but causes the said key to Erictionally contact with the inner wall of the recess to. more securely sustain the sections of the lock nut together and the lock-nut upon the bolt. and the nut proper as well as itsslceve ad- It will benoted by'refer ence to Fig. 1 of the drawing that the threads 3 of the sleeve shall terminate thereon a suitable distance away from the face of the nut A, upon which the said sleeve is formed, and so the end of the key provided with the opening 10 will extend beyond the face of the nut a distance tion of the sleeve, and when the iocknut'B' jis screwed upon the said stemv the sp ace'bev -tween the ends of the flange 6 will provide for-the said flange'engaging within the reJ- substantially equalito the nnthreaded' pore cess of the key, which, engagement; as above I claim is i A nut lock embodying a pain of separable sections, one of said sect-ions beingprovided with a sleeve which has its outer tace thread ed at a distance away from its juncture with the section and'the bore of said sleeve being also PIOVidGd'With threads which provide a continuation of the threads of the bore of the nut section, the face of this section as Well as the unthreaded portion of the stein there" of being formed with an opening whioheir having ters the bore thereof, a siidable he I teeth upon one of its edges and a apted to be arranged Within, the opening and to be guided by the walls thereof, the said key having one of its faces extending beyond the nut-section, and the said extending portion be ng provided with a transversely-arranged of the; said fsecondfsection' being provided the'sleeVe *to force'the key tightly Wit in KLSQWB'IIIE'SI thelteeth thereof vertically into. engagementfwith 'the thread of the bolt within the bore of the nut when thesaid sec- -endsectionfisrotated.upon the sleeve in one direction, and to. raise the key out of the bore of the-nutwhen the said second section i's-rotated upon the sleeve in a second or reverse. direction. l

' In testimony whereof I afiix my signature in'presence of two Witnesses.

THOMAS A. HOOKE Y. Witnesses i W. FJKARM,

W 13. SMITH.

Copies of this patent may be obtained 91 five centseach, by addressing the Commissioner 01 Petente,

Washington, D. G.

Es ot,,the second nut section being arran ed for rotationupon the sleeve, the inner ace' the opening ofth'e firstnut section and sleeve.

withan 'c'eentrically arranged-split flange, the openingo-r split of the flange: b eing arran gedinear the ieri'meter-of the said sec} tion; and the 'sai tlangeadaptedto "coact .Withfthfi depressio'niof the key when thesaid section'isgiotated in either direction u on 

